Rewrite the following sentences

Rewrite the following sentences.

37. Shall we go to Phong Nha cave this weekend?

How about How about Phong Nha Cave ?

38. It’s good idea to listen to the weather forecast before going for a picnic.

You should____________________________________________________.

39. How high is mount Everest?

What is_______________________________________________________.

40. Why don’t we go to Phu Quoc island next holiday?

Let’s _________________________________________________________.